12001210221001 has 2 divisors, whose sum is σ = 12001210221002. Its totient is φ = 12001210221000.

The previous prime is 12001210220977. The next prime is 12001210221019. The reversal of 12001210221001 is 10012201210021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12000162015625 + 1048205376 = 3464125^2 + 32376^2 .

It is a cyclic number.

It is not a de Polignac number, because 12001210221001 - 2⁵ = 12001210220969 is a prime.

It is a super-2 number, since 2×12001210221001² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12001210221401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000605110500 + 6000605110501.

It is an arithmetic number, because the mean of its divisors is an integer number (6000605110501).

Almost surely, 2^{12001210221001} is an apocalyptic number.

It is an amenable number.

12001210221001 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001210221001 is an equidigital number, since it uses as much as digits as its factorization.

12001210221001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12001210221001 its reverse (10012201210021), we get a palindrome (22013411431022).

The spelling of 12001210221001 in words is "twelve trillion, one billion, two hundred ten million, two hundred twenty-one thousand, one".